Chris, although I assume there can be many causes or combinations of causes
that will cause those symptoms they are absolutely identical to the problem
I had that was caused by an injector that was providing way to much gas.  O2
sensor saw the gas, leaned out the other three.  This was complicated by a
miss adjusted throttle switch, a small part of the problem.

On 1/23/07, Christopher Gronski <gronski@gmail.com> wrote:
>
> Volks,
>
> My van is exhibiting weird behaviour. When I pull away from a stop and
> put my foot on the gas the van lags and the revs will not pick up.
> Moreover my milage has dropped to about 200km / 120 miles per tank
> full.
>
>